Gnus Tip of the Day

Not that this is going to be a regular feature or anything, but I
learn something new about Gnus (my mail client) just about every
day. Often what I learn is something that I knew before but forgot.

Today I re-learned that in a mail buffer,

C-c RET c p will sign and encrypt the message.

C-u C-c RET P runs (mml-preview), which will
show you a preview of the message after you've added the sign and
encrypt tags. This way you can make sure it will actually end up
being encrypted and signed.